Center punch guide for piping



FIG. 1 is a front perspective view of a center punch guide for piping showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a top plan view;

FIG. 5 is a bottom view; and

FIG. 6 is a right side elevational view, the left side being a mirror image thereof. 

The ornamental design for a center punch guide for piping, as shown and described. 